Dustpan for floor-surfacing machines



I. V. SPURLIN DUSTPAN FOR FLOOR SURFAQING MACHINES Aug. 21, 1928.

Filed Oct. 25, 1926 2 Sheets-Sheet 1 r HI lnvent or Jra/ V,\S,ourZz7z/ 25% Attorney I. V. SPURLIN DUSTPA N FOR FLOOR SURFACING MACHINES Augl2l, 1928..

2 sheets-sheet 2 Filed Oct 25, 1926 I Irwentpr 19w ZZSpurZzm Attorney Patented Aug. 21, 1928.

' UNI E --ST TES inn v. srunmmfor iIAMrLroN, 01110.

Thisinvention relates'to new and useful in conjunction with the American Universal floor surfacing machine, manufactured by The American Floor Surfacing Machine Company of Toledo, 'Ohio. Inthe type of floor surfacing machine above identified, the same is equipped with a detachable edge'sanding drum in order to permit the machine to surface the floor at the edges thereof, and said drum may be disposed at either end of the usual hollow shaft ofthe dirt created by theoperation of the drum and it is therefore the primary object of the presentinve'ntion to so construct a dust pan that will catch the dirt and 'dust'created by the edge sanding drum regardless of the end of the main drum to which the same attached. 7' T A further and important object resides in the provision of a dust pan of this character that may be readily associated with the machine in lieu of the usual-pan, and this without requiring any alterationsof the existing stock parts of the machine.

A further and important object is to provide a dust pan thatis equipped with aremovable cover plate that may be disposed.

upon the pan forclosing the ventirea-rea of the same with theexception' of thatportion thereof directly in back of the edgesanding F drum in order that theentire force of the air suction; will be in back of said edge sanding drum to effectively receive all of the dust and dirt created during the operation of said edge sanding drum.

A further and important object is to'provide such a dust pan wherein the cover may be inserted Within the end thereof depend-V 'ent upon the end-of-t-he main drum with which said sandingdrum is associated; A

Other objects will become apparentyas the nature of the invention is better understood,

the samecomprising the novel form, com- I blnation, and arrangement ofparts heremafter more fully described, shown in the' accompanying drawing and claimed; is In the drawings, wherein like reference characters indicate corres throughout the several views :7 7

frame, and" plate for the pan.

"reference character 9;

i now: in use upon the machine. from'the center of-said pan 10 is the usual ponding parts F lgure 1 is afraginentary side elevation of an American Un1versal fioor surfacing new; FOR FLoon-suRFAcIivG MACHINES."

Application filed 0ctober25, 1926'. Serial-No. 144,098.

machine equipped with a dust pan constructed in aCcordancewiththe present invention. i v

of the machine, the main'sanding drum hav for more clearly disclosing the means whereby the cover plate of the. pan maybe detachably secured to said pan. i

Figurefi is asimilar; view taken substantially upon the line 5-:5 of said Figure 2 7 for more clearly disclosingthe methoduof attachment of; the entire pan to the machine Figurel6- is a perspective; of thecOVer -No'w having particulardrawings, 5 ind cates generally a 'fioor; surfacing machine of the American Universal type equipped at its forward end with the usual main sanding drum 6 pivot-ally Figure 2 is a fragmentary front elevation reference, ito the v lngfbeen removed for disclosing my dust s pen in front elevation, the removable cover plate being-partly broken away so as to more clearly disclose the interior construction of the pan. a a I i igure3 is a vertical section through the t machine directly in back of thexdust pan for disclosing the same in rear elevation.

maindrum. In this type of machine no provision is made forcatching the dust and attached at its opposite end tothe frame 7 in the form of a casting and upon the'top side ofawhich isdisposed an electric motor 8 for operating the sanding drum, said frame being equipped at its opposite side directly rearwardlyof the main sanding drum" with the usualtruck wheels one only of which is disclosed and designated by the Myinventionper 'se consists of a dust pan 10 in ithe form of a metallic casting, the

same being of arcuate shape throughout its transverse area, thesame as the type ofpan Leading ,'tion is invited to Figure 3 wherein it will be noted that this rectangular inlet 11 is of a length considerably less than the pan 10 a cilitate movement and toprevent the lower and thus'it is constructed to accommodate 7 small floor surface engaging rollersto faportion of theapan from engaging, ObStlUC- j tions or irregular floor surfaces.

The present pan 10 is considerably longer than the pan with which this type of sand- Formed upon the rear surface of the pan 10 at the opposite ends of the inlet opening 11 are hollow boxings 13-13 formed fwith' vertical slots 14-1 1 in registration-with similar slots 1515 in the main bOClY'iOf the panlO so as. to facilitate the attachment of thepan to the frame casting "7 bymachine engagement with the forward end of the frame casting 7, the slots in thebonings and pan'being respectively for the purpose of permitting the vertical raising and lowering of the pan to accommodate uneven floor surfaces and to 1D81I111l33,-S CI'6W driver vto .be

' engaged with the'screws'during the attachment and removal of the pan with respect to the machine frame, i Pivoted between ears l7-l7aupon the rear surface of the pan 10 directly outwardly "of the machine frame 7 'and adjacent one end thereof is a pivotal latch dog 18, the

upper end of which is'provided with an outwardly projected pin 19 movable through an opening 20 1n-sa 1d pan while arranged between the lower end of the latch dog and said pan is an expansible coil spring '21 for normally maintaining-the pin 19 of thedog in full engagement to ,the opening 20 as clearlyindicated inFigure 4. p '1 I Furthermore, the opposite longitudinal edges of the pan 10 are formed with angular undercut lips 22-22 for receiving the beveled. longitudinal edges of sewer plate "23, which eover plate is also of arcuate forniationthroughout its transverse area: as disclosed in Figures 4, 5' and 6. Upon the rear surface of this cover plate at opposite corners'and adjacent opposite ends thereof are recesses 24-24, for receiving the pin 19 of the latch dog 18 regardlessofinto which.

end of the 10 said cover plate is in serted. i i I At the outer end of the'cover plate' 23 the same is'formed with an arcuateshaped housing 25, 'the front and inner side wall of which is open as clearly indicated" in Figure 6.

' The opposite ends of the pan 10 are -while the end of the cover plate 23 opposite from the end carrying the housing 25is 5 formed upon its rear surface witha rearwardly projectingwall 26, the edge of which is of curvilinear formation so as to engage the adjacent end of, the dustvpan 10 to afford an end wall for said dust pan.

Obviously when the previously mentioned usual dust bag. screws 16-16; The rear surface of each boxing 13 is of plano-configurationso to permit the pan to be secured in flush edge sanding drum (not shown) is associated with eithervend of the main sanding drumJ6-the cover plate 23 is so disposed withinjthe pan 'lO that the housing 25 will be arranged directly in back of said end sanding drum tocatch the dust and dirt created by the same; By reason of the cover plate .23 being. disposedupon the open side of the pan 10, the entire air suction will be throu-ghthe housing 25 so thatall particles ofl-idust and dirt will be sucked. through said housing and subsequently intozthe pan 2 10 and then through: the nozzle 12 into the From the foregoing description and draw- ,ings it will be evident thatI haveevolved and produced a novel product of manufacmight state again, that in machines of this character, themanufacturers provide a supplementary sanding drum whlch' is referred to inthe trade as an edge stand ng drum.

Incidentally, it"is slightly larger in diameter than themain drum and when it is in place the main drum'israised Ioifthe surfaceof thefloor, Also, theold pan is rigidly omounted on the body portion of the machine,

is of generally arcuate formation, ;open on its/front side to collect the dust, and hasclosed'end walls." In -the present arrangement,however the pan 10 is open at its opposite ends and the longitudinal topand bottom edges are provided with the aforesaid angularlyfiirected lips 22 for slidable reception of the removable cover, plate 23. My

dust pa is reg rded as, an improvement over." the old pan in that it is adjustablyv mounted and can be raised up or down to obtainthe ,desired spacing from the floor surface to overcome any *possibilityiof dra ging, *It i runs on small rollers and is therebycaused to move more smoothly. The cover, plate 23 can be slid in from either endof the pan and when the edgingsa-nd drum is not in use, the cover plate and receptacle 25 carried thereby can be removed for convenient a transportation. The receptacle .25 is fof course arranged at theend of the main drum u upon which the edging 'or supplemental drum is mounted. In this way thefioor dust which is beat upby the" small 'drum is :col-

lected in the receptacle 25' and-swept into the. pan '10 underneathof the cover 23 as is indicated in Figure These and other advantages andfeatures of the invention have doubtless'been made apparent by'the foregoing description and drawings, for which reason a morelengthy description-is believed to be unnecessary. m I

1 Having thus described the invention, what 1 claim as newianddesire to secure by:

ters Patent is:- I

1. In a dust pan for floor surfacing inachines, a pan unit" constructed for attachment to the machine frame rearwardly of the sanding drum, a cover plate for said pan, and a housing at one end of the plate open at its front and inner end, said housing extending beyond theend of said sanding drum 7 at its front and inner end, said housing ex! tending beyond. the end of said sanding drum and having communication with the dust pan when the coverplate is associated therewith, and means whereby the cover plate may be maintained in rigid association with said dust pan. 7

3. I11 a dust pan for floor surfacing machines, a pan unit constructed for attachment to the machine frame rearwardly of the sanding drum, a cover plate for said pan, and a housing at one end of the plate open at its front and inner end, said housing extending beyond the end of said sanding drum and having communication, with the dust pan when the cover plate is associated therewith, means whereby the cover plate may be maintained in rigid association with said dust pan, said means being of such a construction as to permit the cover plate to be inserted through either end of the pan so as to dispose the housing at either end of said sanding drum.

.4. In a dust pan for floor surfacing machines, a pan unit constructed for rigid attachment to the machine frame in back of the usual sanding drum, a cover plate for the pan, and an. open front sided and inner ended housing at one end of the cover plate projecting beyond the end of the pan when the cover plate is applied thereto, said housing having communication with the interior of the pan for collecting dust created beyond either end of said sanding drum.

'5. In a dust pan for floor surfacing niachines, a pan unit constructed for rigid attachmentto the machineframe in back of) the usual sanding drum, a cover plate for the pan, and an open front sidedand inner ended housing at one end of the cover plate projecting beyond the end of the pan when the cover plate'is applied thereto, said housing having communication with the interior of the pan for collecting dust created beyond either end of said sanding drum, and means whereby the cover plate is detaohably se cured to the pan when associated therewith.

6. In a dust panffor floor surfacing ma chines, a pan unit constructed for rigid attachment tothe machine frame in back of the usual sanding drum, a cover plate for the pan, and an open front sided and inner.

ended housing at one .end of the cover plate projecting beyond the end of the pan when the cover plate is applied thereto, said l1ous-' ing having communication with the interior of the pan forcollecting dust created beyond either end of said sanding drum, and means wherebythe coverplate is detachablysecured to the pan when associated therewith, said means'being of such construction as to permit the cover plate to be inserted Within the pan from either end thereof. Y

7. In a structure of the class described, a dust collecting and conveying device adapted tobe mounted on a conventional type of floor surfacing machine employing a main drum and a detachable edging drum, said device comprising amainpan adapted to be adjustably mounted on the'machine for cooperation with the maindrum, and a convertible auxiliary dust collecting receptacle in. communication with'the main pan and detachably mounted on saidmain pan.

In testimony whereof I affix my signature.

IRAV; sPURLIN. 

